Computational and experimental investigation of condensation flow patterns and heat transfer in parallel rectangular micro-channels

Lei, Yuchuan; Mudawar, Issam; Chen, Zhenqian

doi:10.1016/j.ijheatmasstransfer.2019.119158

Cited by 22 publications

(3 citation statements)

References 120 publications

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“…Moreover, microchannels were inclined to choke owing to the high Mach number . Compared with experiments, CFD models are nonintrusive for researching this microstructured device . The numerical findings for a microchannel and its thermal enhancement are presented in this section.…”

Section: Phase Change For Thermal Management (Tm)mentioning

confidence: 99%

Recent Advances in CFD Simulations of Multiphase Flow Processes with Phase Change

Zhu

Zhang

et al. 2023

Ind. Eng. Chem. Res.

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Phase change is a phenomenon that has been extensively utilized in chemical engineering, energy, electronics, vehicle, and space exploration. From both the science and engineering perspectives, gaining a profound understanding of the intricacies of multiphase flow processes accompanied by heat and mass transfer due to phase change is of fundamental importance. Indeed, the computational fluid dynamics (CFD) has been increasingly applied as an effective tool to give an in-depth and efficient analysis of the phase change processes, thereby enhancing our understanding and capacity to control and optimize the phase change effects in these processes. This paper seeks to provide a comprehensive review of the utilization of CFD methodologies in the simulations of phase change flows across various applications, including temperature management, drying, separation and purification, and others. First, the CFD models at various scales that are developed to elucidate the phase change processes are summarized. Second, the noteworthy advances in the recent CFD simulation work on various phase change processes are presented, respectively. Finally, the challenges and potential prospects to facilitate the application of the phase change flow are discussed. The current review aims to offer insightful guidance for the CFD modeling of phase change processes in numerous engineering application scenarios.

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Section: Phase Change For Thermal Management (Tm)mentioning

confidence: 99%

Recent Advances in CFD Simulations of Multiphase Flow Processes with Phase Change

Zhu

Zhang

et al. 2023

Ind. Eng. Chem. Res.

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“…A range of turbulence models has been implemented in flow condensation simulations. Shear Stress Transport (SST) model has been used by many researchers for computational condensation phase change analysis 39,57,58 . The SST k-ω is a two-equation eddy-viscosity model, which assumes the proportional relationship between Reynolds shear stress and turbulent kinetic energy in the boundary layer 59 .…”

Section: Turbulence Modelmentioning

confidence: 99%

“…The authors show that the presence of noncondensable gases deteriorate the heat transfer by forming a layer through which the steam should diffuse. Lie et al 39 performed numerical and experimental studies on FC-72 flow condensation in a square channel with hydraulic diameter of 1mm. The authors confirmed the presence of smoothannular, wavy-annular, transition, slug, bubbly, and pure liquid flow patterns in the minichannel.…”

Section: Introductionmentioning

confidence: 99%

Parametric study on hydrothermal properties of condensing flow in microtube heat exchangers using numerical and experimental approaches

Sadaghiani¹

2021

Preprint

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Microchannels have increasingly been used to miniaturize heat transfer equipment, improve energy efficiency, and minimize heat transfer fluid inventory. A fundamental understanding of condensation in microscale will yield far-reaching benefits for the different areas of industry. In this study, microtubes with inner diameters of 250, 500, 600, and 900 µm were used to investigate the effect of microtube diameter, inlet quality, and mass flux on the liquid/vapor interface near the wall boundaries in condensing flow. After validation with the experimental results, a transient numerical model (based on the volume of fluid approach) was developed to investigate the hydrothermal properties of condensing such as bubble dynamics, flow map transitions, transient interface shear force, and temperature on flow condensation performance in terms of heat transfer coefficient and pressure drop. The liquid film thickness, slug velocity, and location of transition from annular flow to slug flow inside the microtube were characterized for different microtubes, and the resultant alteration in condensation flow heat transfer and pressure drop is discussed in detail. The obtained results indicated that the interfacial characteristics of condensing flow in microtubes with hydraulic diameters lower than 500µm are majorly different from those with D>500µm.

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Experimental Study of Enhanced Boiling Heat Transfer with Suction

Liu

et al. 2021

Microgravity Sci. Technol.

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Computational and experimental investigation of condensation flow patterns and heat transfer in parallel rectangular micro-channels

Cited by 22 publications

References 120 publications

Recent Advances in CFD Simulations of Multiphase Flow Processes with Phase Change

Recent Advances in CFD Simulations of Multiphase Flow Processes with Phase Change

Parametric study on hydrothermal properties of condensing flow in microtube heat exchangers using numerical and experimental approaches

Experimental Study of Enhanced Boiling Heat Transfer with Suction

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